TotalView Users Guide - CI Wiki

Using Programming Language Elements
� You can use assignment, break, continue, if/else structures, for, goto, and
while statements. Creating a goto that branches to another TotalView
evaluation is undefined.
Using Fortran
When writing code fragments in Fortran, you need to follow these guidelines:
� In general, you can use free-form syntax. You can enter more than one
statement on a line if you separate the statements with semi-colons (;).
However, you cannot continue a statement onto more than one line.
� You can use GOTO, GO TO, ENDIF, and END IF statements; Although
ELSEIF statements aren’t allowed, you can use ELSE IF statements.
� Syntax is free-form. No column rules apply.
� The space character is significant and is sometimes required. (Some Fortran
77 compilers ignore all space characters.) For example:
Valid Invalid
DO 100 I=1,10 DO100I=1,10
CALL RINGBELL CALL RING BELL
X .EQ. 1 X.EQ.1
You can use the following data types and declarations in a Fortran expression:
� You can use the INTEGER, REAL, DOUBLE PRECISION, and COMPLEX data
types.
� You can’t define or declare variables that have implied or derived data
types.
� You can only use simple declarations. You can’t use a COMMON, BLOCK
DATA, EQUIVALENCE, STRUCTURE, RECORD, UNION, or array declaration.
� You can refer to variables of any type in the target program.
� TotalView assumes that integer (kind=n) is an n-byte integer.
Fortran Statements
You can use the Fortran language statements:
� You can use assignment, CALL (to subroutines, functions, and all intrinsic
functions except CHARACTER functions in the target program),
CONTINUE, DO, GOTO, IF (including block IF, ENDIF, ELSE, and ELSE IF), and
RETURN (but not alternate return) statements.
� If you enter a comment in an expression, precede the comment with an
exclamation point (!).
� You can use array sections within expressions. For more information, see
“Array Slices and Array Sections” on page 336.
� A GOTO statement can refer to a line number in your program. This line
number is the number that appears in the Source Pane. For example, the
following GOTO statement branches to source line number 432:
GOTO $432;
You must use a dollar sign ($) before the line number so that TotalView
knows that you’re referring to a source line number rather than a statement
label.
TotalView Users Guide: version 8.7 387